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ffmpeg: allow overriding and amending AVStream->disposition 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-01-08 22:51:25 +01:00
parent a1062e1437
commit 85d7e02e4a
3 changed files with 41 additions and 0 deletions
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32
ffmpeg.c
View File

@ -2968,6 +2968,37 @@ static int transcode_init(void)
}
}
}
if (ost->disposition) {
static const AVOption opts[] = {
{ "disposition" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
{ "default" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT }, .unit = "flags" },
{ "dub" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB }, .unit = "flags" },
{ "original" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL }, .unit = "flags" },
{ "comment" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT }, .unit = "flags" },
{ "lyrics" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS }, .unit = "flags" },
{ "karaoke" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE }, .unit = "flags" },
{ "forced" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED }, .unit = "flags" },
{ "hearing_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "flags" },
{ "visual_impaired" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "flags" },
{ "clean_effects" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "flags" },
{ "captions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS }, .unit = "flags" },
{ "descriptions" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS }, .unit = "flags" },
{ "metadata" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA }, .unit = "flags" },
{ NULL },
};
static const AVClass class = {
.class_name = "",
.item_name = av_default_item_name,
.option = opts,
.version = LIBAVUTIL_VERSION_INT,
};
const AVClass *pclass = &class;
ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
if (ret < 0)
goto dump_format;
}
}
/* open each encoder */
@ -3879,6 +3910,7 @@ static int transcode(void)
}
av_freep(&ost->forced_kf_pts);
av_freep(&ost->apad);
av_freep(&ost->disposition);
av_dict_free(&ost->encoder_opts);
av_dict_free(&ost->swr_opts);
av_dict_free(&ost->resample_opts);

3
ffmpeg.h
View File

@ -206,6 +206,8 @@ typedef struct OptionsContext {
int nb_apad;
SpecifierOpt *discard;
int nb_discard;
SpecifierOpt *disposition;
int nb_disposition;
} OptionsContext;
typedef struct InputFilter {
@ -430,6 +432,7 @@ typedef struct OutputStream {
const char *attachment_filename;
int copy_initial_nonkeyframes;
int copy_prior_start;
char *disposition;
int keep_pix_fmt;

6
ffmpeg_opt.c
View File

@ -1186,6 +1186,9 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
}
MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
ost->disposition = av_strdup(ost->disposition);
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
@ -2937,6 +2940,9 @@ const OptionDef options[] = {
{ "discard", OPT_STRING | HAS_ARG | OPT_SPEC |
OPT_INPUT, { .off = OFFSET(discard) },
"discard", "" },
{ "disposition", OPT_STRING | HAS_ARG | OPT_SPEC |
OPT_OUTPUT, { .off = OFFSET(disposition) },
"disposition", "" },
/* video options */
{ "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },